DemoCheck

Adds a checkbox next to each match and map on HLTV, allowing you to mark which ones you've already watched.

I made this extension because I kept forgetting which CS matches I had already watched on HLTV. Sometimes I'd open a demo or VOD, only to realize I'd already seen it. This tool adds a small checkbox next to each match on the HLTV results page, so you can mark the ones you’ve already watched. It also adds checkboxes next to each map on the match detail page, in case you’re only watching specific maps. That’s it. Nothing fancy just a simple way to keep track of what you’ve seen. I built it for myself, but figured it might be useful for others too. This extension is unofficial and not affiliated with HLTV.org.